At Western Sydney University, scientists grew the human lens cells from scratch.

Groups like Cataract Kids Australia are excited about the breakthrough, calling it "one of the first major treatment developments for childhood cataracts in a decade".

Director Megan Prictor said children could be very distressed by how the condition was managed.

"They can have to spend a lot of time at hospital appointments and find it really upsetting to have to wear a patch to develop the vision in their eyes, or wear very thick glasses that might lead to teasing at school," she said.

Ms Prictor said they would like to see more funding for Dr O'Connor's work.

"Obviously this research is still at lab stage, so it will be great if we could see clinical trials that could test whether implanting those lenses will enable a more natural lens to grow as child grows."

Since the airing of the gut-wrenching documentary Leaving Neverland, many of us have wrestled with an uncomfortable, yet essential question: given everything we know, can we continue listening to Michael Jackson's music?